Examine source code of Voice-to-Note Recorder

{
  "manifest_version": 2,
  "name": "Voice-to-Note Recorder",
  "version": "1.0",
  "description": "Record voice and convert to text notes.",
  "permissions": [
    "storage",
    "tabs",
    "microphone"
  ],
  "browser_action": {
    "default_popup": "popup.html",
    "default_icon": "icon.png"
  },
  "icons": {
    "48": "icon.png"
  },
  "browser_specific_settings": {
    "gecko": {
      "id": "{6e5ffc7a-8c57-4f0a-9ab6-d4e73e2e0561}"
    }
  }
}